ipc Token

The ipc token contains the System V IPC message/semaphore/shared-memory handle used by the caller to identify a particular IPC object. The fields are:

• A token ID

• An IPC object type identifier

• The IPC object handle

The following figure shows the token format.

Figure B-16 ipc Token Format

An ipc token is displayed by praudit as follows:

IPC,msg,3

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Note -

The IPC object identifiers violate the context-free nature of the Solaris CMW audit tokens. No global "name" uniquely identifies IPC objects; instead, they are identified by their handles, which are valid only during the time the IPC objects are active. The identification should not be a problem since the System V IPC mechanisms are seldom used and they all share the same audit class.

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The IPC object type field may have the values shown in Table B-4. The values are defined in </usr/include/bsm/audit.h>.

Table B-4 IPC Object Type Field

Name	Value	Description
AU_IPC_MSG	1	IPC message object
AU_IPC_SEM	2	IPC semaphore object
AU_IPC_SHM	3	IPC shared memory object